Thread Sleep for Specified Duration

The sleep function blocks the currently running thread, causing it to voluntarily sleep for a specified duration before resuming execution. Its parameter type is Duration. The function prototype is:

func sleep(dur: Duration): Unit // Sleep for at least `dur`.

Note:

If dur <= Duration.Zero, the current thread will only yield execution resources without entering sleep mode.

Below is an example of using sleep:

main(): Int64 {
    println("Hello")
    sleep(Duration.second)  // sleep for 1s.
    println("World")
    return 0
}

The output is as follows:

Hello
World